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Rainfall · Telangana

Rainfall in Nalgonda

810 mmof rain in an average year, 2006–2025

Nalgonda gets 75% of its rain from the monsoon, June to September, and August is its wettest month. In 2025 it got 1,079 mm, 33% above average (excess).

Augustwettest month, 179 mm on average
2020wettest year, 1,217 mm
2015driest year, 445 mm
5months a year with 50 mm of rain or more

Month-wise rainfall in Nalgonda

Average rain in each month, 2006–2025.

050100150200JanJan: 5 mmFebFeb: 5 mmMarMar: 14 mmAprApr: 17 mmMayMay: 43 mmJunJun: 103 mmJulJul: 164 mmAugAug: 179 mmSepSep: 156 mmOctOct: 88 mmNovNov: 26 mmDecDec: 8 mm
MonthAverage rainShare of the year
January5 mm1%
February5 mm1%
March14 mm2%
April17 mm2%
May43 mm5%
June103 mm13%
July164 mm20%
August179 mm22%
September156 mm19%
October88 mm11%
November26 mm3%
December8 mm1%

Yearly rainfall in Nalgonda since 2006

Lighter bars are dry years, 20% or more below average (2011, 2014, 2015, 2016, 2018), when wells and borewells are drawn hardest. The last ten years averaged 12% more rain than the ten before.

05001000150020062006: 950 mm2007: 837 mm2008: 992 mm20092009: 710 mm2010: 933 mm2011: 477 mm20122012: 671 mm2013: 1,023 mm2014: 599 mm20152015: 445 mm2016: 637 mm2017: 850 mm20182018: 551 mm2019: 720 mm2020: 1,217 mm20212021: 949 mm2022: 914 mm2023: 760 mm20242024: 879 mm2025: 1,079 mm- - average 810 mm

What Nalgonda's rain is worth to a building

Every millimetre of rain on a square metre of roof is a litre of water. A 100 m² roof in Nalgonda sheds about 68,850 litres in an average year, most of it in four monsoon months. Sent into a recharge pit, it refills the ground instead of flooding the street.

Your building: how much can you recharge?

Water you can put back each year1,37,700 L≈ 14 water tankers of 10,000 L

1 mm of rain on 1 m² is 1 litre. The surface factor allows for water lost to splash, evaporation and first-flush.

Rainwater harvesting cost in NalgondaGroundwater level in NalgondaPonds and lakes in NalgondaWater table depth in NalgondaWater quality in Nalgonda

Frequently asked questions

What is the average annual rainfall in Nalgonda?

About 810 mm a year, averaged over 2006–2025 from NASA POWER satellite and weather-model data for the centre of the district. The wettest year in that time was 2020 (1,217 mm) and the driest was 2015 (445 mm).

Which month gets the most rain in Nalgonda?

August, with 179 mm in an average year, followed by July and September. January is the driest month (5 mm).

How much of Nalgonda's rain falls in the monsoon?

75% of a normal year's rain falls from June to September. 5 months average 50 mm or more.

How much did it rain in Nalgonda in 2025?

1,079 mm, which is 33% above the 2006–2025 average, or "excess" in the India Meteorological Department's terms.

Is rainfall in Nalgonda increasing or decreasing?

The last 10 years averaged 12% more rain than the 10 before them. Year-to-year swings are still bigger than that change.

How much rainwater can a house in Nalgonda harvest?

A 100 m² (about 1,076 sq ft) concrete roof in Nalgonda sheds about 68,850 litres in an average year: area × rainfall × 0.85 for splash and evaporation. Sent into a recharge pit, that refills the ground under the house instead of running into the drain.

Rainfall from NASA POWER (bias-corrected satellite and weather-model rainfall) at the centre of Nalgonda district. It reads close to, but not exactly the same as, India Meteorological Department rain-gauge totals, and rain varies within a district.

Rainfall in other districts of Telangana